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Ephemeris: 09/27/2023 – Let’s find out where the naked-eye planets have wandered off to this week
This is Bob Moler with Ephemeris for Wednesday, September 27th. Today the Sun will be up for 11 hours and 55 minutes, setting at 7:31, and it will rise tomorrow at 7:36. The Moon, 2 days before full, will set at 6:22 tomorrow morning.
Let’s find out where the naked-eye planets have wandered off to this week. Four of those five planets are now visible, but Mars is too close to the Sun to be seen. Saturn is the sole evening planet visible. It can be spotted in the southeast in the evening. And it will still be visible throughout the morning hours until it sets at 4:44 am. Saturn is in retrograde or westward motion now, against the stars of Aquarius. Jupiter, Venus and Mercury are the morning planets. Jupiter will rise at 9:02 pm. It, like Saturn is moving retrograde, which will last the rest of this year. Venus is our brilliant morning star, at its brightest, and will rise in the east-northeast at 3:59 am. Tiny Mercury will rise at 6:10 am, and be visible in the east by around 6:30.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT –4 hours). They may be different for your location.
Addendum
Ephemeris: 09/20/2023 – Let’s find out where the naked-eye planets have wandered off to
This is Ephemeris for Wednesday, September 20th. Today the Sun will be up for 12 hours and 17 minutes, setting at 7:44, and it will rise tomorrow at 7:28. The Moon, 2 days before first quarter, will set at 10:10 this evening.
Let’s find out where the naked-eye planets have wandered off to. Four of those five planets are now visible, but Mars is too close to the Sun to be seen. Saturn is the sole evening planet visible. It can be spotted in the southeast in the evening. And it will still be visible throughout the morning hours until it sets at 5:15 am. Saturn is in retrograde or westward motion now, against the stars of Aquarius. Jupiter, Venus and Mercury are the morning planets. Jupiter will rise at 9:35 pm. It is a week into its retrograde motion, which will last the rest of this year. Venus is our brilliant morning star, at its brightest, and will rise in the east-northeast at 4:07 am. Tiny Mercury will have risen by 6 am, and be visible in the east by around 6:30.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT –4 hours). They may be different for your location.
Addendum
Ephemeris: 09/18/2023 – Saturn the planet and the god of old age
This is Bob Moler with Ephemeris for Monday, September 18th. Today the Sun will be up for 12 hours and 23 minutes, setting at 7:48, and it will rise tomorrow at 7:26. The Moon, halfway from new to first quarter, will set at 9:14 this evening.
The planet Saturn is named after the Roman God of agriculture. He is often depicted as an old man with a scythe. It happens that Saturn is the most distant of the naked eye planets and as such takes nearly 30 years to totter its way around the Zodiac signifying his old age. Saturn is also depicted as Father Time at New Year’s Eve being replaced by the New Year’s baby. Saturn is the Roman Equivalent of the Greek god Cronus, where we get time related words like chronology, chronometer. The planet that is Saturn, appears to be the only planet referred to specifically in the Bible as being the closest planet to heaven. The goddess Ishtar, an equivalent of Venus, is mentioned as the “Queen of Heaven” in Jeremiah (Jer 7:18; 44:19), but not as a planet. The only mention of Venus is in its morning apparition as Lucifer, the Son of Morning, who is also equated with Satan.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT –4 hours). They may be different for your location.
Addendum
Ephemeris: 09/15/2023 – Rare Friday star party at the Sleeping Bear Dunes
This is Ephemeris for Friday, September 15th. Today the Sun will be up for 12 hours and 32 minutes, setting at 7:53, and it will rise tomorrow at 7:22. The Moon, 1 day past new, will set at 8:20 this evening.
Weather permitting, a sun and star party will be held tonight at the Sleeping Bear Dunes National Lakeshore at the Dune Climb. The solar part will start at 5 pm, while the evening viewing will start around 8:30 pm. These events will be hosted by the park rangers and the Grand Traverse Astronomical Society, who will bring their telescopes to view the heavens, including the planet Saturn and the wonders of the summer Milky Way. The telescopes will be setup in the parking area closest to the dune. As twilight fades Saturn will be about the only object to view, as it gets darker more and more wonders of the Milky Way will be seen. They include star clusters and nebulae, clouds of gas and dust. And maybe we’ll get a peek at the galaxy next door, the Great Andromeda Galaxy.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT –4 hours). They may be different for your location.
Ephemeris: 09/06/2023 – Let’s find out where the naked-eye planets and comet Nishimura have wandered off to
This is Ephemeris for Wednesday, September 6th. Today the Sun will be up for 12 hours and 59 minutes, setting at 8:10, and it will rise tomorrow at 7:12. The Moon, at last quarter today, will rise at 11:40 this evening.
Let’s find out where the naked-eye planets have wandered off to. Three of those five planets are now visible but Mars and Mercury are too close to the Sun to be seen. Saturn is the sole evening planet visible. Jupiter and Venus are officially the only visible morning planets. Saturn can be spotted in the southeast in the evening. And it will still be visible throughout the morning hours morning until twilight starts. Saturn is in retrograde or westward motion against the stars of Aquarius. Jupiter will rise at 10:54pm. It is slowing its eastward motion and will become stationary tomorrow. Venus is our brilliant morning star. It will rise at 4:43 tomorrow morning. Comet Nishimura is left and a bit below Venus in the east-northeast.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT –4 hours). They may be different for your location.
Addendum
Ephemeris: 08/30/2023 – Let’s find out where the naked-eye planets are
This is Ephemeris for Wednesday, August 30th. Today the Sun will be up for 13 hours and 20 minutes, setting at 8:23, and it will rise tomorrow at 7:03. The Moon, is the full Blue Moon today, and it will rise at 8:39 this evening. No, it’s not really blue in color. The Blue Moon is the second full moon in a particular month.
Let’s find out where the naked-eye planets are. Three of those five planets are now visible. Mars and Mercury are too close to the Sun to be seen. Saturn is the sole evening planet visible. Jupiter and Venus are officially the only visible morning planets. Saturn can be spotted in the southeast in the evening. And it will still be visible throughout the morning hours until just before sunrise. Tonight Saturn will appear above and right of the full moon, though it might be difficult to spot in the Moon’s glare. Saturn is in retrograde or westward motion now, against the stars of Aquarius. Jupiter will rise at 10:54pm. It is slowing its eastward motion and will become stationary on September 7th. Venus is making an appearance in the morning sky now as our brilliant morning star. It will rise at 5:13 tomorrow morning.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT –4 hours). They may be different for your location.
Addendum
The naked-eye planets and the Moon at sunset and sunrise on a single night, starting with sunset on the right on August 30, 2023. The night ends on the left with sunrise on the 31st. Click or tap on the image to enlarge it. Created using my LookingUp app and GIMP.
Ephemeris: 08/23/2023 – Let’s find out where the naked-eye planets have wandered off to this week
This is Ephemeris for Wednesday, August 23rd. Today the Sun will be up for 13 hours and 41 minutes, setting at 8:35, and it will rise tomorrow at 6:55. The Moon, 1 day before first quarter, will set at 11:36 this evening.
Let’s find out where the naked-eye planets have wandered off to this week. Three of the five planets are now visible. Mars and Mercury are too close to the Sun to be seen. Jupiter, Saturn and Venus are all officially morning planets now, although Saturn does rise in the evening shortly after sunset. It will become an evening planet in four days, when it will rise at sunset. It can be spotted in the southeast in the evening. And it will still be visible throughout the morning hours. Saturn is in retrograde or westward motion now, against the stars of Aquarius. Jupiter will rise at 11:21pm. Venus is making an appearance in the morning sky now. It will rise at 5:53 tomorrow morning in the east.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT –4 hours). They may be different for your location.
Addendum
Finding Saturn in the evening for tonight at 10 pm, August 23, 2023. The unlabeled partial constellation on the left is part of Pisces, and the five stars in a circle is an asterism (informal constellation) called the Circlet. Another asterism is composed of the four stars in a small triangle with another in the center, above and a bit left of the Aquarius label is the Water Jar with water streaming from it to the right. Click or tap on the image to enlarge it. Created using Stellarium and GIMP.
The morning planets at 6:10 am tomorrow morning, August 24, 3023, after Venus rises, with the bright stars of winter slowly disappearing in the advancing morning twilight. Click or tap on the image to enlarge it. Created using Stellarium and GIMP.
Telescopic Saturn, Jupiter and Venus (north up) as they would be seen in a small telescope, with the same magnification at 10 pm August 23, 2023, for Saturn and 6:10 am August 24, 2023, for Jupiter and Venus. Apparent diameters: Saturn 18.96″, its rings 44.17″; Jupiter 42.90″; and Venus 54.66″ and is 5.0% illuminated. The ” symbol means seconds of arc (1/3600th of a degree.) Click or tap on the image to enlarge it. Created using Cartes du Ciel (Sky Charts).
The naked-eye planets and the Moon at sunset and sunrise on a single night, starting with sunset on the right on August 23, 2023. The night ends on the left with sunrise on the 24th. Click or tap on the image to enlarge it. Created using my LookingUp app and GIMP.
Ephemeris: 08/16/2023 – Let’s find out where the naked-eye planets have wandered off to this week
This is Ephemeris for Wednesday, August 16th. Today the Sun will be up for 14 hours and 1 minute, setting at 8:47, and it will rise tomorrow at 6:47. The Moon is new today, and won’t be visible.
Let’s find out where the naked-eye planets have wandered off to this week. Only two of these five planets are visible. Mars, Mercury and Venus are all too close to the Sun to be seen. Jupiter and Saturn are officially morning planets, although Saturn does rise in the evening shortly after sunset. It will become an evening planet on the 27th, when it will rise at sunset. It can be spotted in the southeastern part pf the sky in the evening. It will also be visible throughout the morning hours. Saturn is in retrograde or westward motion against the stars of Aquarius now. Jupiter, still moving slowly eastward against the stars of Aries the ram, also rises in the evening, but barely, rising just before midnight. It will be stationary, that is, it will stop its eastward motion against the stars, and will begin its retrograde or westward motion on September 7th.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT –4 hours). They may be different for your location.
Addendum
Saturn can be seen low in the east-southeast around 10 pm, or an hour or so after sunset. Created using Stellarium.
Morning planets and the winter stars are still visible about 45 minutes before sunrise. In the Interlochen/Traverse City Area, that would be about 5:45 am. Large images can be truncated on the right. Click or tap on the image to enlarge and display the complete image. Created using Stellarium.
Telescopic Saturn and Jupiter (north up) as they would be seen in a small telescope, with the same magnification, Saturn at 11 pm, tonight, August 16, 2023, and Jupiter at 5:45 am on the 17th. Apparent diameters: Saturn 18.93″, its rings 44.10″; Jupiter 41.94″. Saturn and Jupiter are approaching us, so their apparent diameters are growing. The ” symbol means seconds of arc (1/3600th of a degree). Click or tap on the image to enlarge it. Created using Cartes du Ciel (Sky Charts).
The naked-eye planets and the Moon at sunset and sunrise on a single night, starting with sunset on the right on August 16, 2023. The night ends on the left with sunrise on the 17th. Click or tap on the image to enlarge and display the complete image. Created using my LookingUp app and GIMP.
Ephemeris: 08/09/2023 – Let’s find out where the naked-eye planets have wandered off to this week
This is Ephemeris for Wednesday, August 9th. Today the Sun will be up for 14 hours and 19 minutes, setting at 8:57, and it will rise tomorrow at 6:39. The Moon, 1 day past last quarter, will rise at 1:04 tomorrow morning.
Let’s find out where the naked-eye planets have wandered off to this week. Venus is gone, setting too close to sunset. It will pass between the Earth and the Sun on the 13th, and be visible before sunrise by the end of the month. Mars and Mercury, though technically in the evening sky and like Venus also appear too close to the Sun to be spotted. Mars will pass behind the Sun in November. The other two naked eye planets are in the morning sky. Appearing at 5:45 am, which is roughly 55 minutes before sunrise, tomorrow morning, Jupiter will be high in the southeast, Saturn will be lower in the southwest. And tomorrow morning, the waning crescent Moon will be midway up the sky in the east.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT –4 hours). They may be different for your location.
Addendum
Saturn, low in the east-southeast at 11 pm, or about 2 hours after sunset, along with nearby zodiacal constellations. Click or tap on the image to enlarge it. Created using Stellarium and GIMP.
Jupiter Saturn and the Moon are seen at 5:45 tomorrow morning, August 10, 2023, about 55 minutes before sunrise. Also shown are the zodiacal constellations and Orion. The native peoples of our area, the Anishinaabe, called Orion the Winter Maker. So enjoy summer while it lasts, because and relatively few months it’s going to be all over, and Orion will be in the evening sky and winter will be here. Click or tap on the image to enlarge it. Created using Stellarium and GIMP.
Telescopic Saturn and Jupiter (north up) as they would be seen in a small telescope, with the same magnification, Saturn at 11 pm, the 9th and Jupiter at 5:45 am August 10, 2023. Apparent diameters: Saturn 18.87″, its rings 43.96″; Jupiter 41.02″. Saturn and Jupiter are approaching us, so their apparent diameters are growing. The ” symbol means seconds of arc (1/3600th of a degree). Click or tap on the image to enlarge it. Created using Cartes du Ciel (Sky Charts).
The Moon as it might appear in binoculars or telescope with selected features labeled tomorrow morning, August 10, 2023. Created using Stellarium, LibreOffice Draw for labels, and GIMP for the GIF animation.
The naked-eye planets and the Moon at sunset and sunrise on a single night, starting with sunset on the right on August 9, 2023. The night ends on the left with sunrise on the 10th. Venus is not in the sky at either sunset or sunrise, being south of the Sun. Large images can be truncated on the right. Click or tap on the image to enlarge and display the complete image. Created using my LookingUp app and GIMP.
Ephemeris: 08/04/2023 – Star party tonight if it’s clear
This is Ephemeris for Friday, August 4th. Today the Sun will be up for 14 hours and 32 minutes, setting at 9:04, and it will rise tomorrow at 6:33. The Moon, 3 days past full, will rise at 11:02 this evening.
The Grand Traverse Astronomical Society will be hosting a star party tonight at Northwestern Michigan College’s Joseph Rogers observatory from 10:00 and midnight. If it’s clear, there will be at least a good solid hour of relatively dark sky to view the wonders beyond the solar system between 10 and 11 pm tonight before the bright moon rises. Saturn should be spotted by 11 pm. Low in the east southeast. Though Saturn will be fuzzy due to all the Earth’s atmosphere we have to look through to see it, it will still be a great sight. Astronomers don’t consider Saturn to be an evening planet yet. To be an evening planet, it must rise before sunset. The observatory is located south of Traverse City, MI on Birmley Road between Keystone and Garfield roads.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT –4 hours). They may be different for your location.
Addendum
Some of the GTAS members’ telescopes set up behind the observatory for the star party. There’s a 16-inch telescope in the dome above. The dome at ground level is set up for to transmit images for a Zoom connection with a 14-inch telescope. When Saturn and the Moon rise, they will only be visible from the 16-inch telescope in the big dome.
Bob Moler's Ephemeris Blog 